"And your God is One God: There is no god but He, Most Gracious, Most
Merciful." (Quran 2:163)

" Say: "What thing is most weighty in evidence?" Say: "God is witness
between me and you; This Qur'an hath been revealed to me by inspiration, that I
may warn you and all whom it reaches. Can ye possibly bear witness that besides
God there is an
other God?" Say: "Nay! I cannot bear witness!" Say: "But in truth He is the one
God, and I truly am innocent of (your blasphemy of) joining others with Him."
(Quran 6:19)